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<head>
    <meta charset="UTF-8">
    <meta http-equiv="X-UA-Compatible" content="IE=edge">
    <meta name="viewport" content="width=device-width, initial-scale=1.0">
    <title>第一次作业</title>
    <style>
        .box1 {
            width:100px;
            height:100px;
            background-color:pink
        }
        .box2 {
            border:1px solid;
            border-radius:2px;
        }
        .box3{
            width:100px;
            height:60px;
            float:left;
        }
        .float-div{
            float:left;
            line-height:0;
        }
    </style>
</head>
<body>
    <h1>一级标题</h1>
    大家加油啊啊啊啊啊！！！！
    <h2>二级标题</h2>
    <p>下面有张图片哦</p>
    <p>注意路径的使用哦！！</p>
    <img src="图片/屏幕截图 2023-04-14 080438.png" height="300" width="250"/>
    <div class="box1">这是一个长宽100px的盒子</div>
    <a href="http://www.baidu.com">到百度的链接</a>
    <ul>
        <li>太好啦</li>
        <li>太好啦</li>
        <li>太好啦</li>
        <li>太好啦</li>
        <li>太好啦</li>
        <li>你们好吗</li>
    </ul>
    <span class="box2"> 点我 </span>
    <p>学习计划</p>
    <table border="1">
        <tr><th>知识点</th><th>重要程度</th><th>难度</th><th>学习周期</th></tr>
        <tr><td>html</td><td>5</td><td>3</td><td>7days</td></tr>
        <tr><td>html</td><td>5</td><td>3</td><td>7days</td></tr>
        <tr><td>html</td><td>5</td><td>3</td><td>7days</td></tr>
    </table>
    <table border="1">
        <tr><th>科目</th><th>分数</th></tr>
        <tr><td>语文</td><td>99</td></tr>
        <tr><td>数学</td><td>60</td></tr>
        <tr><td>总分</td><td>159</td></tr>
    </table>
    <ol>
        <li>fighting!</li>
        <li>fighting!</li>
        <li>fighting!</li>
        <li>fighting!</li>
        <li>fighting!</li>
    </ol>
    <h6>dogs</h6>
    <div class="box3"><img src="图片/dog.png" width="100" height="60"></div>
    <div class="box3"><img src="图片/dog.png" width="100" height="60"></div>
    <div class="box3"><img src="图片/dog.png" width="100" height="60"></div>
    <div class="box3"><img src="图片/dog.png" width="100" height="60"></div>
    <div class="box3"><img src="图片/dog.png" width="100" height="60"></div>
    <div class="box3"><img src="图片/dog.png" width="100" height="60"></div>
    <div class="float-div"><img src="图片/dog.png" width="200" height="250"></div>
    <div class="float-div"><img src="图片/dog.png" width="400" height="250"></div>
    <div class="float-div"><img src="图片/dog.png" width="200" height="150"></div>
    <div class="float-div"><img src="图片/dog.png" width="200" height="150"></div>
    <div class="float-div"><img src="图片/dog.png" width="200" height="150"></div>
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